We have extensive experience in the production of any type of mechanical or structural drawing. Most of our mechanical drawings are generated from 3D models as we find we can usually create a 3D model just as quickly as the required 2D views. The use of 3D models has many other well known benefits, such as: easy visualisation of the finished product, integration with stress analysis programs, etc.
For structural drawings, general schematics and storyboards we would normally produce 2D drawings to keep the costs down unless we already have the 3D models.
We have a strict checking and review process prior to the release of any drawings. Our preference is to review drawings with the manufacturer and/or the client to clarify any possible ambiguities as part of our risk management reduction strategy.